System and methods of driving an electroluminescent lamp

Details System and methods of driving an electroluminescent lamp System and methods of driving an electroluminescent lamp

2008-07-22

2008-07-22

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Plural regulators

C315S307000, C315S360000

Reexamination Certificate

active

11698766

ABSTRACT:
Embodiments of the present invention include systems and methods of driving an electroluminescent lamp. In one embodiment, the electroluminescent lamp is driven to a first threshold during a first time period and then driven to successive voltages between the threshold and a maximum voltage during successive time. This method of driving the lamp waveshapes the lamp voltage signal. In one example, the thresholds are set to minimize audible noise from the electroluminescent lamp due to the piezoelectric effect.

REFERENCES:
patent: 3708717 (1973-01-01), Fleming
patent: 4982314 (1991-01-01), Miki
patent: 5366978 (1994-11-01), Furukawa et al.
patent: 5436283 (1995-07-01), Okada et al.
patent: 5457359 (1995-10-01), Meyer
patent: 6011382 (2000-01-01), Littlefield et al.
patent: 6555967 (2003-04-01), Lynch et al.
patent: 7081720 (2006-07-01), Burau et al.
patent: 7355351 (2008-04-01), Kyrberg et al.

Affiliated with

Also associated with

Rating

System and methods of driving an electroluminescent lamp does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and methods of driving an electroluminescent lamp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and methods of driving an electroluminescent lamp will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3952799